Maintained as species by Cabrera (1961), but ranked as a subspecies of griseoflavus by Hershkovitz (1962). Chromosomal divergence reported by Pearson and Patton (1976), who reinstated domorum as a species (also see Olds et al., 1987). Reig (1978) followed Cabrera (1961) in allocating taterona to G. domorum, and Anderson (1997) maintained the latter as a definable subspecies.